Wow. Biden is radiating a lethal smirk... #PMTdebate
— Piers Morgan (@piersmorgan) October 12, 2012
Joe Biden certainly seems to be having more fun in the debate stage than his running mate was last week. But the smile he has worn off and on throughout the debate is getting mixed reaction from debate watchers.
Biden doing best imitation of Al Gore 00. Snickers, grimaces, and exaggerated gestures. #debate
— Karl Rove (@KarlRove) October 12, 2012
People who like Biden will think this is the greatest debate ever. Folks who don't will find him at his most obnoxious.
— Sam Youngman (@samyoungman) October 12, 2012
Here's the animated version of the smirk getting so much attention, from Tumblr and The Guardian's live-GIF blog: